cfc/cfc-web/src/main.js

import Vue from 'vue'
import App from './App.vue'
import router from './router'
import store from './store'
import ElementUI from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
import { formatPrice, formatPriceWithSymbol, formatRate, formatScore } from './utils/format'

Vue.use(ElementUI)

Vue.prototype.formatPrice = formatPrice
Vue.prototype.formatPriceWithSymbol = formatPriceWithSymbol
Vue.prototype.formatRate = formatRate
Vue.prototype.formatScore = formatScore

// Fix Element UI 2.15.x el-submenu removeTabindex null error
// https://github.com/ElemeFE/element/issues/21965
// Also fixes: v-if 切换菜单项后 el-submenu 残留 DOM 遮罩导致无法点击的问题
const ElSubmenu = Vue.component('ElSubmenu')
if (ElSubmenu && ElSubmenu.options && ElSubmenu.options.methods) {
  const origRemove = ElSubmenu.options.methods.removeTabindex
  if (origRemove) {
    ElSubmenu.options.methods.removeTabindex = function() {
      try {
        if (!this.$el || !this.$el.querySelector) return
        const tooltip = this.$el.querySelector('.el-tooltip')
        if (!tooltip) return
        return origRemove.call(this)
      } catch (e) {
        // v-if 切换导致 DOM 已销毁时的静默容错
      }
    }
  }
  // el-submenu 展开/收起时也可能操作已销毁的 DOM
  const origOpen = ElSubmenu.options.methods.open
  if (origOpen) {
    ElSubmenu.options.methods.open = function() {
      try {
        return origOpen.call(this)
      } catch (e) {
        // 静默容错
      }
    }
  }
}

Vue.config.productionTip = false

new Vue({
  router,
  store,
  render: h => h(App)
}).$mount('#app')